.container{
    width: 100%;
    height: 100%;
}

.page{
    width: 50vw;
    margin: auto;
}

.survey_card{
    width: 60vw;
    height: 100%;
    margin: auto;
    border: 1px gainsboro solid;
    border-radius: 10px;
    margin-top: 40px;
    margin-bottom: 40px;
    box-shadow: gainsboro 20px 20px 20px;
    background-color: white;
}

.theme_state_label{
    margin-top: 3vh;
}

.theme_lable{
    text-align: center; 
    font-size: 2vw;
}

.state_lable label{
    font-size: 1.5vw;
    color: gray;
}

.state_lable{
    text-align: center;
}

.border{
    width: 20vw;
    background: black;
    height: 5px;
    margin: 1vh auto;
}

.pageIndex{
    font-size: 1.5vw;
}

.pageIndex input{
    border: none;
    border-bottom: solid 2px black;
    width: 43vw;
    outline: none;
    height: 4vh;
    font-size: 1vw;
    margin-left: 3vw;
    background-color: rgba(0, 0, 0, 0);
}

.card{
    border: 1px solid rgb(25, 151, 255);
    border-radius: 5px;
    margin-bottom: 20px;
    padding-bottom: 3vh;
    box-shadow: gainsboro 0 0 10px;
}

.pageIndex-lable{
    padding-left: 3vw;
    padding-top: 1vh;
}

.btn-css{
    padding-top: 5vh;
    text-align: center;
    margin-bottom: 20px;
}

#btn_send{
    width: 20vw;
    /* height: 5vh; */
    font-size: 1rem;
    border: 1px #7fbbfc solid;
    color: #7fbbfc;
}
.btn{
    width: 200px;
}

#btn_send:hover{
    background: #7fbbfc;
}

#btn_disabled{
    width: 20vw;
    /* height: 5vh; */
    font-size: 1rem;
    border: 1px gainsboro solid;
    color: gray;
    background-color: gainsboro;
}



@media screen and (max-width: 375px) { /*当屏幕尺寸小于600px时，应用下面的CSS样式*/
    .survey_card{
        width: 80vw;
    }
    .theme_lable {
        font-size: 6vw;
    }
    .state_lable label {
        font-size: 5vw;
        color: gray;
    }
    .card {
        margin-bottom: 10px;
    }
    .page {
        width: 70vw;
    }
    .pageIndex input {
        width: 63vw;
        height: 2vh;
    }
    .pageIndex {
        font-size: 5vw;
    }
    .btn{
        width: 150px;
    }
    
  }